Numbers on motor - will it help date my A1?

49tandc · Post by **49tandc** » Sat Jul 10, 2010 11:18 am

I got to the numbers on the engine. Will these help date this jeep as the PO took all data plates

On the boss under the thermostat housing is:
RMD74867

On the side of the block is:
808277-W-18-D-AR

Any answers would be helpful.

Thanks,
49T&C

hillbilly21 · Post by **hillbilly21** » Sat Jul 10, 2010 6:16 pm

GOOD BET ITS A 1955 !!

Post by **wesk** » Sat Jul 10, 2010 10:37 pm

RMD is a factory new replacement engine. That engine could have been installed in any year M38A1 in the field. So no luck with dating your jeep with a known replacement engine in it. A M38A1 built for the US Army in 1955 would have a serial ranging from MD79XXX thru MD85XXX and it's engine would be MD103XXX thru MD107XXX.

Have you completed a group M38A1 survey yet.

49tandc · Post by **49tandc** » Mon Jul 12, 2010 5:18 pm

I believe its a 53 - hinged grille, & other stuff. Wes, I did dsend you the survey.

Thanks,
49T&C